Hi Marc,
It may help if you post the full backtrace of the exception so we get an idea
what kind of key algorithm is involved:
try {
session.connect();
} catch(Throwable t) {
t.printStackTrace();
}
Some more information about the kind of remote system may also help. For
instance, using a Linux box do this:
$> sftp -vvv your.host.ip > debug .log
And debug.log will contain lots of information about the key exchange process:
OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: ssh_connect: needpriv 0
[…]
Thanks,
Martin
--
Martin Oberhuber, SMTS / Product Owner – Development Tools, Wind River
direct +43.662.457915.85 fax +43.662.457915.6
From: Marc Logemann [mailto:marc.logem...@gmail.com]
Sent: Monday, July 28, 2014 6:18 PM
To: jsch-users@lists.sourceforge.net
Subject: [JSch-users] Jsch stopped working with Java8
Hi,
we are using JSch as transport mechanism for EDI data to a different company
for about 7 years now. Today we upgraded to Java 8 and now when we try to
connect, we get:
Session.connect: java.security.InvalidKeyException: Key is too long for this
algorithm
Currently we use:
<dependency org="com.jcraft" name="jsch" rev="0.1.42"/>
Our code is like this..
Session session = jsch.getSession(sftpUser, sftpHost);
session.setPassword(sftpPassword);
UserInfo ui = new SFTPClientWrapper.MyUserInfo();
session.setUserInfo(ui);
session.connect();
So some questions arise :-)
1) will upgrade to latest version of JSch help me?
2) do you know the error in general? I dont have any clue because i dont do
anything with keys. IMO its some kind of internal issue with java and JSch.
Thanks for any hints.
Marc
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